| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | No | 233 |
9.7%
|
| 1 | Yes | 2135 |
89%
|
| 8 | Refused | 15 |
0.6%
|
| 9 | Don't know | 17 |
0.7%
|